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OSPF configuration commands
The term "router" in this chapter refers to both routers and Layer 3 switches.
abr-summary (OSPF area view)
Syntax
abr-summary ip-address { mask | mask-length } [ advertise | not-advertise ] [ cost cost ]
undo abr-summary ip-address { mask | mask-length }
View
OSPF area view
Default level
2: System level
Parameters
ip-address: Destination IP address of the summary route, in dotted decimal format.
mask: Mask of the IP address in dotted decimal format.
mask-length: Mask length, in the range of 0 to 32 bits.
advertise | not-advertise: Advertises the summary route or not. If none of the advertise and not-advertise
keywords is set, the summary route is advertised.
cost cost: Specifies the cost of the summary route, in the range of 1 to 16777215. The default cost is the
largest cost value among routes that are summarized.
Description
Use abr-summary to configure a summary route on an area border router (ABR).
Use undo abr-summary to remove a summary route.
By default, no route summarization is configured on an ABR.
You can enable advertising the summary route or not, and specify a route cost.
This command is available only on an ABR to summarize multiple contiguous networks into one network.
With the undo abr-summary command used, summarized routes will be advertised.
Examples
# Summarize networks 36.42.10.0/24 and 36.42.110.0/24 in Area 1 into 36.42.0.0/16.
<Sysname> system-view
[Sysname] ospf 100
[Sysname-ospf-100] area 1
[Sysname-ospf-100-area-0.0.0.1] network 36.42.10.0 0.0.0.255
[Sysname-ospf-100-area-0.0.0.1] network 36.42.110.0 0.0.0.255
[Sysname-ospf-100-area-0.0.0.1] abr-summary 36.42.0.0 255.255.0.0
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